The Free Hands Method

In 1969 Emmett Chapman, who had no previous knowledge of DeArmond, Webster or any other tapping guitarists, discovered that he could tap on the strings with both hands, and that by raising the neck up could align the right hand's fingers with the frets as on the left, but from above the fretboard. This made scale-based melody lines just as easy to tap in the right hand as the left, and a new way of playing a stringed instrument was born. Chapman redesigned his home-made 9-string guitar to support his new playing method, and began selling his new instrument (The Chapman Stick) to others in 1974. In 1976 Chapman published his volume of collected lessons he used for teaching guitarists and Stick players as "Free Hands: A New Discipline of Fingers on Strings."

The Touch System

As mentioned before, this is a whole playing style and a whole book could be written about it. The first musician to play this way was pickup designer Harry DeArmond in the 1940's, who used tapping as a way to demonstrate the sensitivity of his pickups. While each hand could play its own part, DeArmond held his right hand in the same orientation as conventional guitar technique. This meant the ability of that hand to tap scale-based melody ines was limited. He taught his approach to Gretch Guitars employee Jimmie Webster, who wrote an instruction book called "The Touch System for Amplified Spanish guitar." Webster made a record and travelled around demonstrating the method. Even though it inspired a few builders (Dave bunker, for example), the Touch System was limited by the lack of equal movements for the right hand and never caught on.

Interdependent tapping

Interdependent tapping is by far the most common type of tapping. It is generally used as a lead guitar technique, most commonly during solos; however, a small number of songs are entirely tapped. The player's picking hand leaps out to the fretboard and begins to tap the strings with the fingers. However, one must get the pick out of the way in order to tap. Some players do this by sticking the pick between their fingers; others simply use the middle finger to tap. The Van Halen technique of getting rid of the pick is done by moving the pick into the space between the first and second joints of his middle finger.

Guitar/Tapping

Tapping is the short name of fretboard tapping or finger tapping: the act of tapping the fingers against the strings in order to produce sounds, rather than striking or plucking the strings. Specifically, it usually refers to two-handed tapping, that is, tapping involving both the left and right hand. It is not clear who discovered tapping, but it was certainly popularized, but not discovered, by Eddie van Halen. Van Halen was listening to "Heartbreaker" by Led Zeppelin, and he was quite inspired by the solo, which contained a variation of tapping. This is arguably the song that pushed Van Halen to popularize and use "tapping" frequently. A rather different kind of independent two-handed tapping, which is a whole playing method rather than a technique, was discovered by Harry DeArmond and named "The Touch System" by his student Jimmie Webster. Another method of independent tapping was discovered by Emmett Chapman, where the right hand comes over the fretboard and lines up with the frets like the left. Therefore this book dubs the three kinds of tapping Interdependent tapping and The Touch System", and the "Free Hands Method."

String Choke

If the strings are really slack, you can quickly whip the tremolo bar back up until it clicks, making a string choke. Sometimes overtones will remain, and you can get some interesting sounds and harmonies. However, these tend to disappear quickly as it is drowned out by the harmonics of the new string pitch.

Windmill

The "windmill" develops if you just keep
turning the tremolo bar in a circle. Naturally,
the tone moves up and down at a regular
pace. However, this can sound very "outer
space" and can easily be over done, and
you should use this sparingly.

Ruler Sound

If you press the tremolo bar down, and then
suddenly release it upwards and quickly
alternate between high ups and down,
it makes a snap-away sounds, like a ruler
vibrating off the edge of a table. The
principle behind this is similar to the cat purr.